package com.xiaoxin.errorDemo.interceptor;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;

@Slf4j
class LoginInterceptor implements HandlerInterceptor {

    private static final ObjectMapper objectMapper = new ObjectMapper();

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.info("拦截1-拦截前 =====");
        return HandlerInterceptor.super.preHandle(request, response, handler);
    }

    private void renderJson(HttpServletResponse response, String json) {
        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");
        try (PrintWriter writer = response.getWriter()) {
            writer.print(json);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        log.info("拦截1-处理后 =====");
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        log.info("拦截1-拦截完成 =====");
        HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
    }
}
